The Lewis blood group system comprises two main carbohydrate antigens, Le’ and Leb. Lewis typing has traditionally been based on serologic determinations using erythrocytes and saliva. Several recent studies have demonstrated that erythrocyte Lewis phenotype may change during pregnancy or disease, and inappropriate Lewis antigens have been found in both normal and neoplastic tissue. To evaluate...

The formal framework introduced by Kratzer in 1981 is closely related to the work on DSDL in the sixties and seventies, such as the work of Hansson and Lewis discussed in the handout of Lecture 1. Her semantics is therefore sometimes referred to as the Lewis-Kratzer semantics. In the semantics of Kratzer, the preference ordering is not given, but it is constructed from two sets of propositions,...

OBJECTIVE The main aims of this study were to explore the molecular structural relationship between Human epididymis protein 4 (HE4) and Lewis y antigen by determining their expression patterns and clinical significance in ovarian epithelial carcinoma. METHODS The structural relationship between HE4 and Lewis y antigen was examined using immunoprecipitation and confocal laser scanning microsc...

We study how communication systems can emerge through repeated interaction between two individuals. We apply three reinforcement learning algorithms (Roth-Erev learning, Learning Automata, and Q-Learning) to the repeated Lewis signaling game, a game theoretic model of a communication problem. Our experiments show that each of these algorithms always reach a state of optimal communication even f...

AIM The effect of a depression-like status formed by chronic stress on the development of Lewis lung carcinoma metastases in C57Bl/6J mice was investigated. Two types of acute stress (restraint and social stress) were used for comparison. METHODS The depression-like status was induced by eight-week exposure to repeated but unpredictable stressors (chronic mild stress model) and was assessed i...

We study the behaviour of steady-state solutions of a two-component flame filament system subject to chaotic mixing. This system exhibits a saddle-node bifurcation at a critical Damköhler number. We analyze the system through a one-dimensional phenomenological lamellar model. We present a nonperturbative technique, which allows us to describe the behaviour of the reduced lamellar model near the...

The logic V is the basic logic of counterfactuals in the family of Lewis’ systems. It is characterized by the whole class of so-called sphere models. We propose a new sequent calculus for this logic. Our calculus takes as primitive Lewis’ connective of comparative plausibility : a formula A B intuitively means that A is at least as plausible as B. Our calculus is standard in the sense that each...

This work treats species of the genus Microsternus Lewis, 1887 from Asia and North America. A new genus is described: Neosternus (type species Microsternus higonius Lewis, 1887). A new species is described: Microsternus pengzhongi. A new synonym is provided: Microsternus tricolor taiwanicus Nakane (=Microsternus tricolor Lewis). Three species previously placed in Microsternus Lewis, 1887 are tr...